Cardholder



Dec. 30, 1941. H. w. Gor-F 2,268,248 GARDHOLDER Filed sept. 11, 1940 F/aa Y EXT. 1740 /NVENTOR By H. W GOFF ATTORNEY /G 7 I u 2(0c Patented Dec. 30, 1941` VUNITED STATES PATENT OFFICE Harold w. con, Manhasset, N. Y., assignor to Bell Telephone Laboratories, Incorporated, New York, N. Y., a corporation of New York Application September 11, 1940, Serial No. 356,268

` (c1. io-10.5)

4 Claims.

I'hisinventionrelates to card holder devices and morespecically to a card holder for use, for example, in telephone call transmitters of the finger-wheel operated type and the like.

Itis an improvement over the card holder disclosed ina copending application led in the name of J. C. Field, Septemberl, 1937,` Serial Noi 164,482, Patent No. 2,206,224.

Inzthe card holder disclosed in the above-mentioned application, a card is used on which is printed the central cnice number and the number` of the subscribers station with a transparent protecting disc placed over the instruction card.` `The card` and the `disc are held in superposed relation to each otherin the holder by a peripherally resilient dat split ring of metallic material engaging a circular groove formed in thelwall of the holder, in position, so that the underside` of the flat ring is iiush with the top disposed s-urface of the` transparent protecting disc when placed in the holder in superposed relation to the `instruction card. I

I In telephone systems, as it is well known, it`

is sometimes necessary to change the exchange oice number of a telephone which may be printed on one card and sometimes the number of a telephone subscriber which may be printed l on another card, and sometimes both the `exchange cnice numberand the subscribers telephone number which may both be printed on a single card. While the card holder disclosed in the copending application above mentioned has "been found satisfactory in `connection with the useof a single instruction card; that is the card bearing both the exchange office number and the subscribers number, it has been found that such a card holder arrangement was not suitable in connection with the use of cards of different thickness or a plurality of cards, the added thickness of which exceeds the thickness of the original instruction card and that of the transparent disc.

The object of the present invention is the provision of a card holder which will receive cards of different thickness while `decreasing the numberof operating parts.

In the drawing:

Fig. lis a plan View of the card holder of the invention showing two cards and the trans-` parent protecting disc in assembled relation in the holder, the latter being shown with portions cut away and embodied in the operating element of a telephone call transmitter;

Fig. 2 is a sectional view taken on line 2-2 of Fig. 1 enlarged;

Fig, 3 is a plan view of a card bearing the subscriber's telephone number;

Fig. 4 is a plan view ofa `card bearing the exchange oice number;`

Fig. 5 is a plan View of the cards bearing the subscribers telephone number and the exchange oiiice number disposed in superpcsed relation to each other;

Fig. 6 is a plan view of the transparent disc;

view taken on line The card holder of theinvention is formed,l for example, as shown in Figs. l,` 2 and 9 with a` call transmitter operating element in the form -of the linger-wheel I0, the `card holder consisting of a hub-like projection countersunk to form a circular rim R and a shoulder portion SP, the latter serving as a bearingsurface for the cards I3,. I4 and I9, as the case may be, while the rim R serves for holding these cards against lateral movement in the holder as shown in Figs. 2 and 9, respectively.

The inner surface of the wall of rim` R, as best seen in Figs. 2 and 9, is formed with a tapered portion I5 and a cylindrical portion Il` contiguous thereto. The cylindrical portion is of a length equal to the added thickness of cards I4 and I9 and is provided with a notch or keyway I'I, shown in Fig. 1, for receiving the lug portions I8 and I8a of cards Ill` and I9 or lug I 8b of card I3 for locating the `printed matter on these cards relative to certain points of reference on the finger-Wheel or other articles to which the card holder may` `form a part either integrally or secured thereto in any Well-known manner.

A transparent protecting cover for the instruction card as shown in Figs, 1, 2, 6, 7 and 9, which in this example is illustrated in the form 'of a disc 20 made of resilient material, is formed With a concentrically disposed ridge 2| having a substantially concavo-convex cross-section provided for permitting sumcient diameter changes at the periphery of the disc for its insertion in the holder Where it locks itself in the tapered portion I5 through the medium of its own resiliency, the tapered surface I5 of the holder causing the the countersink.

' adjacent card for holding the latter rmly'against the shoulder or bearing `portion SP formed by Fig. 9 shows-the card holder of the invention `Wherein a single` card I3, shown in Fig. 8 is used.

Under this -condition the transparent `disc 20 is inserted in the holder With the apex of `the :ridge- 2I adjacent to the card I3, while Fig. 2 shows the peripherally for automatically locking itself in said tapered surface for holding the card in said r holder.

CII

card holder in which the cards I4 and- I9 areAV placed in superposedrrelation therein but with the transparent disc 2,0 in position inverted from that shown in Fig. 9. Under this condition the space taken up by the ridgewhenthe disc I20 is` placed in the holder in the position shown in Fig. 9 is made up of the added thickness of the card I9 and as described in connectionwith Fig. 9, the transparent disc due to its diametric resiliency and its engagement with the tapered surface portionIE-of the holder is caused 'to move against its adjacent card yI9 for holding it and itsvassociated cards I4 rmly againstthe shoulder portion SP formed in the recess,

. At aporrt diametrcallv opposite the keyway I1 inthe rim Rvi. provided a notch 2,4 best seen lin Fig. 2,Y into' which a pointed tool may be,

inserted under the edge of the transparent disc 2i) for vdisengaging it'4V from the taperedfsurface or theV holder When it is desired to remove any one of the cards I3', I4 and I9 for replacement by other cards `bearing different exchange Aoffice numbers and telephone subscribers numbers as printed on one or more cards.

What is claimed is: t

` 1. A card holder comprising a rim portion and a backing portion, an `instruction'card fitted in the rim portion and resting against said backing portion, a circular tapered surface in the rim portion, a protecting transparent, disc normally having a diameter corresponding to the larger diameter of the tapered` surface in the, rim,4 and largest diameter of said tapered surface in said y rim, and ilegible means formed with said disc lpermitting diametrical contraction and expansion of the latter in the rim for its insertion insaid holder, the expansion effect of said means against saidjtaperedsurface causing said disc to move automatically .against the indicia bearing card for holding it'against said backing.

means formed with said disc for permitting diametrical changes of said disc forinsertion `of the latter insaid holder,` said means expanding 3. A card holder comprising a rim and a backing portion formed integrally with said rim, an indicia bearing card fitted in said rim and resting against said backing .-p'ortion, the inner Wall of said rim having a tapered surface `and a cylindrical surface adjacent `to said backingportion, a transparent protecting member placed over said card having ;a ridge Vof substantially con-V cave-convex cross-section permitting diametrical changes of said disc for cooperation with said tapered surface to causelsaid disc to move against said card for holding it ragainst 4said backing surface. n Y

Y 4, A card holder comprising a rimfand abacking portion, said rimhaving its Iwall formed with a tapered surface. a transparent `protecting rdisc having a ridge extending above one vof its vfaces forpermtting diametricalcontraction and expansion of said disc to limits denned...by the smaller and larger diameters of said .tapered surface, :the expansion. ofgsaid disc `againstithe tapered surface of :said rim; `causing said disc tto move toward said backing portion, .saidi disc be ing reversible for permitting thefplacin'g of` one or more cards in said holder, `and means formed in said rim for disengaging said discirom said 

